I have a 98 mazda b4000 with 290000kms and just bought my buddies 2003 ranger 4.0 when a brake job turned into a new truck because of a cracked frame. So any advice or foreseeable issues with swapping in the new motor? Are the harnesses the same? Also going to be taking the bed, seats, transfer case, transmission, 4x4 system(cuz this pulse vacuum thing sucks). Basically everything but frame and cab.